The common fault of fan!
Release time:
2023-09-19
1. The fan shaft part is to ensure that there is lubricating oil, otherwise the fan blade cannot be dragged on the engine. If you are at home, you can choose to turn off the power supply and then move the blades. If the rotation is stiff, there is basically no lubricating oil.
2. Wear caused by long use. If a fan is used for a long time, the motor will be worn out, and the shaft sleeve of the motor will easily burn out.
3. The fan does not turn due to overheating. There is a motor in the fan device, and there will be an overheating circuit breaker in the motor. If a short circuit occurs in the coil winding, the heat generation will increase in a short period of time. In this case, the motor will "strike" and not move.
4. The starting capacitor capacity becomes smaller. When the fan is used for a long time, the capacitor capacity will be reduced, resulting in a smaller motor starting torque and unable to drive the load.
5. Many times the reason why the fan blades do not turn is the problem of poor maintenance. If the fan blade is turned off by hand after turning off the power supply, it should be dripped into the shaft with some lubricating oil so that it can be lubricated, so as not to affect the motive to drag the fan blade.
6. In view of the fact that the fan blades do not rotate due to wear, the simplest thing is to replace the parts, especially the shaft sleeve, which is easy to burn after wear.
7. If the capacitor capacity becomes smaller and the fan does not rotate, the capacitor can be removed and replaced with a new capacitor of the same type. It is recommended to choose a capacitor 20% larger than the original capacitor, which will have a better rotation effect.
8. If the axial clearance of the rotating shaft is too large, you can choose to adjust the gasket after removing the motor. However, remember that when installing the motor back, pay attention to the fact that the rotor must be concentric with the bearing, and slowly tighten the diagonally with screws for lubrication. Finally, knock the shaft with a wooden knob to ensure that it is concentric.
9, if it is because of electrical failure, you can check the wiring of each line, sometimes the wire damage, etc., can be repaired on the problem.
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1. The fan shaft part is to ensure that there is lubricating oil, otherwise the fan blade cannot be dragged on the engine. If you are at home, you can choose to turn off the power supply and then move the blades. If the rotation is stiff, there is basically no lubricating oil.
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